Pump construction



Aug.y y2, 192,7. H M. BOE

vPUMP CONSTRUCTION Filed Aug.25. 1926 stepped within the base of the pump, and communication with a return passage,

Patented Aug Unirse sra HANS M. BOE, OF MINNEAPOLIS, MINNESOTA.

PUMP CONSTRUCTION.

Application led August 23,1926.- Serial No. 130,989.

This invention relates generally -to improvemeiits in p ing dischargev no umps,

having an overhangzzle, a

drip-pipe engageable with the discharge nozzle and rotatably 111 for delivering the drippiiigs to the reservoir. The drip pipes of these pumps may be swung outwardly or aw ay from the vdelivery end or nozzle of the pump to permit introduction of a receptacle beneath rlhese tubular members, generally arranged to the delivery nozzle. as drip pipes, are yieldably engage the discharge endo't` the pump, as a stop, vand a spring` vis provided in drip-'catch po spring operated devices tonormally hold the saine sition. An objection to the as now made, is that :lrilling is necessary either inthe base of fthe pump or in the drip pipe or both, in

order to attach the springs.

is considerable time wasted in assembling Y. the springs, because they are usually placed,

either upon the pump, or mounted upon and attached to the drip-pipe. t

An object of this invention is to provide a tension element torsionally.

active for Ayieldably holding the drip-pipe in catch poi sition,

either with which has no positive connection the drain pipe or with any part of the pump, and by simple insertion, v Another object is which can be assembled,

in an axial direction.

to provide. a device loe cated within the tubular or passage portion oi the pump, and drip pipe,

for assembly by a passage 4in the base yot the'pump, t engaging the lower end of the drain pipery over the upper -e and adapted first inserting one end into andby nd of the spring element, in

a direction axially of the drain passage and of the drain pipe, pipe for oscillation.

,Features of the invention struction of the i placement withi means for 'securing and then securing .the

include the con-- element per se; its mode ofy and the, the device inrotative po-V n 'the drain pipe;

sitionand against axialltranslation. Y

in g my of -atpump Figure 2 is alplanf view showing thepositional relatioiiof my spring ,to certainparts i of the pump.

Figure is a tube is kconnecte detailshowinghow the drain d with the pump for rota- ,pensing apparatus,

Moreover thereA vvmounting thev drain thereof..

tion, but against withdrawal iii an axial direction.

lFigures i and 5 are detail views of the spring element taken in planes at right angles to one another. l

Figure 6l 's a detail plan view of the spi-ing element. l i y In applying my inveiitionto a liquid dis- I arrange thedevice in tensioned relation within the drain tube, as, a base, shown in Figures lv and2. v rlhe numeral vl designates a' base as a coupling member adapted iorthreadedconnection with the top of a reservoir or with has a bore or return passage 3, leading upwardly and communicating with an eXtenysion 4i, which in this instance forms a socket to receive tlielo-wer .end of the drain pipe. Inthe type of ypump to which the invention `is applied, a horizontal delivery arm 6 is ate angularly related portion 10, and mutually parallel terminal portions 12 and I3. rlheklower portion is situated within the eX- tensioii il', is rotatable therein, and commuf nicates with the passage 3 of the base. The

12 of the drain pipe is notched il:

upper portion as at 15 on one side, the opposite sidebeing adaptedto engage thefnipple or nozzle as a stop. yThe arrangement is such, however, that'the draintube canbe drawn laterally into non-inte rtering position.` I kprovide a means, a feature of this invention, for

tube, to permit rotation, .and to prevent accile'ntal withdrawalo'f'the tube `from its socket in a direction 'axially lar or sleevev 2O having an arcuate slot 2l therein, through which a screw 2,2v loosely projects Vand has threaded* engagement withy the extension 4. The upper part of the ele.-.

j vmentk 2O has a reduced tubular extension 25. Figure l is a vertical sectional view sho'w-v invention applied to the drain pipe brazed orotherwise attached tothe tube, to make a leali-proof joint. Ater the tube has been placed in-itsfsocl'retandthe screw 22 For this purpose, I provide a col- 'i also tube supported byv a reservoir. Thisbase engaging with the-extension 4 and through the slot V21, the tube is rotatably held, againstV translatiomaxially. A

' Mylimproved spring element has amain portion 30, and terminally, angularly re lated portions respectively 31h32. Each of these terminal portions is bent, respectively at i3-34 to facilitate insertion, and it will be noted that these bent portions, as loops, lie in planes substantially perpendicular to one another. (See Figures 2 and 6.) The angled portions 3l and32, each form an obtuse angle with the intermediate portion 30. The portion 32 is adapted to liewithin the passage 3 at anangle to the axis of rotation of the tube. The upper portion 3l of the spring element lies Within the angled portion 10 of the tube. (See Figure l.) The result is that the portions 31-32, as radial arms, engage the tube and passage Srespectively to prevent complete rotation ol the tube, but subjecting the element to greater torsion when the tube is turned in a-direction away from its stop engagement with the nozzle. The Wire is bent so that the arms 31 and 32 are radially related substantially as shown in Figure 6. vAlter assembly, the spring element is maintained under tension, as shown in Figure "2. T-he difference in this angular relation can be seen by comparing Figures d 2 and 6.

In assembling the device, the spring ele- Vment is first engaged Within the socket,as

shown in Figure l` With its lovver portion disposed radially With .respect to the axis of rotation of the tube. The tube is then engagedover the upwardly extending end of the spring element and forced downwardly,-

during Which operation the intermediate and upper terminal portions are slightly straightened in respect to one another, but subsequently` assume the normal angular relation, to `lie substantially as shown in Figure Vl. The screw 22 is then vproperly introduced to secure the tube against axial displacement.

y'Ihe assembly is very simple and is made d in a direction axially of the drain tube.

This type of spring and assembly can be i used 1n other environments, 45.

without departing from the spirit of the invention, vand such other uses are contemplated.

. The loop 23 isformedto cause theV bent portion 31 to lie adjacent the lower side of the angular portion 10 ol the tubular mem-` ber, to prevent such straightening of the Wire, as would annul its tors1onal action. Instead o bending the vvireV upon itself as shown to form the loop, any formation may be used which will tend to hold the portion 'n of the wire mentioned, toward the lower side of the bent portion l0 of the tubular member. `The position of the loop 33 should be substantially as shown in Figure 2, "that is,

it should have substantially a diametric relation tothe tube. n n

It will be seen that the angle xfsee Figure l) should not too nearly approach a straight angle. Y

I claim as my invention- 1. In combination, a base member having a stop in having Within said an angled passage, an angled tubular member, having one portion rotatably engaging Within one portion of said passage, a stop engageable by said tubular member, and a torsion element Wholly Within the passage and tubular member having angled portions respectively engaged Within said passage and tubular member and under tension to force-the tubel against the stop.

2. In combination with a barrel-pump including an angled return passage land a delivery spout, an angled `drip-pipe rotatably mountedland leading into the return passage, and adapted to engage thespout as position to catch the drippings, and a torsion spring element, as a wire, having an angled portion respectively in said angled passage and' drip tube, and under tension to yieldably hold the drip tube against the spout in receiving position, and freely releasable by withdrawing the drip pipe in anaxial direction. Y v

3. In combination a base membenliaving an angular passage, an angled tubular meniber having one portion telescopica-Hy engaging Within one portion of said passage for` rotation, a stop `for `said tubular member, and a torsion element having an angled portion respectively in said angled passage and tubular member, arranged to force the tube against the stop, said torsion element having terminal portion, each at an angle obtuse tothe central portion, said portions being only frictionally engaged 'against the ivalls `or' the passage and tubular member'.

4. In combination a base member, having an angular passage, an angled tubular niember, having one portionengaging With one portion of said passage for rotation, va stop for said tubular member, and a torsion element having angled portions respectively in said passage: and-tubular member, arranged to force the tube against the stop, said torsion `element `having terminally angled and terminally looped portions, said loops being in planes substantially perpendicular to one another.'`

5. A support having a bore, a bent tube rotatable in said bore, and a vvire having angularly related portions arranged to be non-rotatably held respectively in said pipes and bore said angularly` related portions being radial in respect to the axis of rotation of the tube. u d i 6. In combination a Vsupport having a lbore, a Vtubular member rotatable in the ore, gularly related to the axis of' rotation, and a Wire .element having a terminalf portion within said angularlyrrelated portion and having an ally disposed portion of the tube, said wire itsopposite terminal portion lying bore at an angle to the axis of rotation of this tubular member.

and having intermediate portion an-` intermediate portion 1n the axi- 7. In combination a base member, having an angular passage, an angled tubular member, having one portion engaging With one portion of said passage, for rotation, a stop for said tubular member, a torsion element having angled portions respectively WhollyV Within said angled passage and tubular member arranged to force the tube against the stop, Vand a sleeve sealingly attached to said, tubular member, and rotatably en- 40 gaged over said base, and rotatably, but non-translatably secured thereto.

In Witness whereof, I have hereunto set my hand this 18th day of August, 1926.

HANS M. BOE. 

